Killet GeoSoftware Ing.-GbR - short: KilletSoft - is a software company, which was established in the year 1991. The society is divided into the ranges "Geodetic Standard Software", "Development Tools for Geoinformatics" and "International Geodata". The focal trades of the companies supplied by KilletSoft are consulting engineers, GIS developers, Internet marketing, public utilities, logistics, telecommunications, security and public services.
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GeoDLL - User defined Coordinate Transformations

GeoDLL supports the development of geodetic software by providing geodetic functions, which are put together into function groups for specific tasks. To use user defined coordinate transformations in own developments a license for the function group "User Definitions" can be purchased.

The group "User Definitions" contains functions for the input of the parameters of self defined Coordinate Systems, geodetic Reference Systems and earth ellipsoids which can be used with the functions of the group "Coordinate Transformations" besides the predefined GeoDLL systems.

Characteristics of the group "User Definitions"

  1. Custom coordinate systems for many projections
    1. 16 possible projection types
    2. Orthogonal Output Device Projection (Pixel calculation)
  2. Custom reference systems
    1. Coordinate Frame Rotation (Seven parameters, Helmert)
    2. Position Vector Transformation (Seven parameters, Bursa-Wolf)
    3. European Standard (Seven parameters, ISO 19111)
    4. Molodensky (Three parameters)
  3. Custom earth ellipsoids
    1. Semi major and minor axes
    2. Flattening

Functions of the group "User Definitions"

  1. Function setusercoordsys1() - Setup of a user-defined Coordinate System
  2. Function setusercoordsys2() - Setup of a 2nd user-defined Coordinate System
  3. Function setuserrefsys() - Setup of a user-defined Reference System
  4. Function setuserellsource() - Setup of a user-defined source ellipsoid
  5. Function setuserelltarget() - Setup of a user-defined target ellipsoid
  6. Function getusercoordpar() - Parameter names of a user-defined Coord. System
  7. Function getusercoordtyp() - type name of a user-defined Coordinate System

Ausführliche Funktionsbeschreibungen

Detailed descriptions of all geodetic functions of this function group you find here in the online manual!

KilletSoft News In order that you are always well informed about our company, we write actual news, current information and special offers here into this column.
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The programs TRANSDAT, SEVENPAR, NTv2Creator, NTv2Poly and NTv2Tools support language files for the programs interface. Since the language dependent texts are managed in external files, link_in new languages can be added at any time by creating new language files. Everybody who is interested can translate a new language file into his native language for himself and all users.
Author: Dipl.-Ing. Fred Killet
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Period: since Januar 1, 2022